<template>
  <div class="spinner">
    <div class="rect1"></div>
    <div class="rect2"></div>
    <div class="rect3"></div>
    <div class="rect4"></div>
  </div>
</template>

<script setup lang="ts">

</script>

<style scoped lang="scss">
.spinner {
  display: inline-block;
  box-sizing: border-box;
  width: 30rpx;
  height: 25rpx;
  text-align: center;
  font-size: 3.9rpx;
  background-color: transparent;
  position: relative;
}

.spinner > div {
  background-color: #fff;
  height: 100%;
  display: inline-block;
  margin-right: 2rpx;
  width: 3.12rpx;
  border-radius: 6.44rpx;

  -webkit-animation: sk-stretchdelay 1.2s infinite ease-in-out;
  animation: sk-stretchdelay 1.2s infinite ease-in-out;
}

.spinner .rect2 {
  -webkit-animation-delay: -1.1s;
  animation-delay: -1.1s;
}

.spinner .rect3 {
  -webkit-animation-delay: -1.0s;
  animation-delay: -1.0s;
}

.spinner .rect4 {
  -webkit-animation-delay: -0.9s;
  animation-delay: -0.9s;
}

.spinner .rect5 {
  -webkit-animation-delay: -0.8s;
  animation-delay: -0.8s;
}

@-webkit-keyframes sk-stretchdelay {
  0%, 40%, 100% { -webkit-transform: scaleY(0.4) }
  20% { -webkit-transform: scaleY(1.0) }
}

@keyframes sk-stretchdelay {
  0%, 40%, 100% {
    transform: scaleY(0.4);
    -webkit-transform: scaleY(0.4);
  }  20% {
       transform: scaleY(1.0);
       -webkit-transform: scaleY(1.0);
     }
}
</style>
